[Two male protagonists + old enemy + system + villain]
The short-protecting demon king
A hundred years ago, he swore an oath with his life in exchange for a hundred years of breathing space for the demon clan.
A hundred years later, the retired villain boss just wants to lie down in the mountains and pick up random NPCs to raise as cubs.
Who would have thought that this randomly picked up cub would be the destined protagonist? !
The system forced him to return to his old career - becoming a villain! Or the kind that only beats your own cubs!
The former soft and cute kid now pointed his sword at his throat: "Why are you still protecting those monsters?!"
He lowered his eyes and chuckled: "Because, I am a demon."
